Symptoms of anxiety and depression were frequent in adolescents and were associated with unhealthy lifestyle factors as substance use and low physical activity. Resilience characteristics seemed to protect against symptoms and markedly influenced the associations between lifestyle factors and symptoms of anxiety and depression. The importance of family and other supportive relationships should be emphasized in treatment and prevention of anxiety and depression in adolescence.

The aim of this study was to assess the prevalence of chronic multisite pain with high disability in relation to emotional or behavioral problems and resilience factors in adolescence. A second aim was to investigate if resilience factors could attenuate the associations between psychiatric symptoms and chronic multisite pain. The study was based on a large cross-sectional study carried out in Norway between 2006 and 2008 and included 7,070 adolescents aged 13-19 years. Chronic multisite pain was defined as pain at least once a week during the last 3 months, scoring high on a disability index, and occurring in three or more locations. Chronic multisite pain was prevalent among adolescents with high scores (>85%) for anxiety/depression, social anxiety, conduct or attention problems (22.8-31.0 for girls, 8.8-19.0% for boys). Several coexistent psychiatric symptoms increased the prevalence of chronic multisite pain for both girls and boys. Resilience factors, including high self-esteem, seldom feeling lonely, and high scores for family cohesion or social competence, were associated with a lower prevalence and markedly attenuated the association between psychiatric symptoms and chronic multisite pain. Psychiatrists should be careful to assess and treat comorbid chronic pain in adolescents with emotional or behavioral problems.

This study examined risk factors of physical aggression during transition from early to late adolescence using a two-wave longitudinal study. Specifically, we examined if risk factors in early adolescence predict physically aggressive behavior starting in late adolescence and why some adolescents desist physical aggressive behavior while others do not. The study sample consisted of 2289 Norwegian adolescents (1235 girls) who participated in the Young-HUNT1 study (mean age 14.5) and the follow-up study 4 years later, Young-HUNT2 study (mean age 18.4). One in six young adolescents reported engaging in physical fights. Moreover, physical aggression in early adolescence was significantly associated with male gender, attention problems, academic problems, being bullied, drinking alcohol, and smoking. Male gender and heavy drinking during early adolescence increased the risk for newly emerging aggressive behavior in late adolescence, whereas heavy drinking during early adolescence was a predictor for persistent versus desisting aggressive behavior in late adolescence.